SYMPOSIA PAPER Published: 01 January 1984
STP32703S

Chemical Interactions of Soluble Silicates in the Management of Hazardous Wastes

Source

Batch and flow leaching studies were carried out using a lime-precipitated plating waste sludge to study the influence of soluble silicates on metal ion leachability. A reduction in metal ion leaching was observed when soluble silicates were used either alone or with a portland cement/fly ash combination. These results suggest that sodium silicate reduces the solubility of metal ions in the waste matrix in addition to protecting the matrix from mild acidic breakdown.

Author Information

Falcone, JS
The PQ Corp., Research and Development Center, Lafayette Hill, Pa.
Spencer, RW
The PQ Corp., Research and Development Center, Lafayette Hill, Pa.
Reifsnyder, RH
The PQ Corp., Research and Development Center, Lafayette Hill, Pa.
Katsanis, EPL
The PQ Corp., Research and Development Center, Lafayette Hill, Pa.
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Details
Developed by Committee: D34
Pages: 213–229
DOI: 10.1520/STP32703S
ISBN-EB: 978-0-8031-4916-8
ISBN-13: 978-0-8031-0405-1